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authorXiubo Li <lixiubo@cmss.chinamobile.com>2015-12-11 06:23:19 +0300
committerMark Brown <broonie@kernel.org>2015-12-13 01:37:06 +0300
commit8cfe2fd3562ba673435bb2d7a4bb451aabd47809 (patch)
tree1d90a00102db38f9d94826f10a92c7637e771b8e /drivers/base/regmap/regcache.c
parent8005c49d9aea74d382f474ce11afbbc7d7130bec (diff)
downloadlinux-8cfe2fd3562ba673435bb2d7a4bb451aabd47809.tar.xz
regmap: cache: Add warning info for the cache check
If there is no cache used for the drivers, the register defaults or the register defaults raw are not need any more. This patch will check this and print a warning. Signed-off-by: Xiubo Li <lixiubo@cmss.chinamobile.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/base/regmap/regcache.c')
-rw-r--r--drivers/base/regmap/regcache.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index 4c07802986b2..9436a0d4cf71 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -100,15 +100,19 @@ int regcache_init(struct regmap *map, const struct regmap_config *config)
int i;
void *tmp_buf;
- for (i = 0; i < config->num_reg_defaults; i++)
- if (config->reg_defaults[i].reg % map->reg_stride)
- return -EINVAL;
-
if (map->cache_type == REGCACHE_NONE) {
+ if (config->reg_defaults || config->num_reg_defaults_raw)
+ dev_warn(map->dev,
+ "No cache used with register defaults set!\n");
+
map->cache_bypass = true;
return 0;
}
+ for (i = 0; i < config->num_reg_defaults; i++)
+ if (config->reg_defaults[i].reg % map->reg_stride)
+ return -EINVAL;
+
for (i = 0; i < ARRAY_SIZE(cache_types); i++)
if (cache_types[i]->type == map->cache_type)
break;